All except Guangling College are in downtown Yangzhou.
If you want to do business, you should go to the Lotus Pond Campus (the main campus). From the West Bus Station, you can take bus 19 or 11 (from the College of Agriculture stop).
There are several hotels on the road in front of the Lotus Pond Campus, priced around 80 RMB. Nearby is the Jinghua Hotel (4 stars).
Across the street, in the Wenhui Road campus, there is the internal hotel of Yangzi University (Tianyuan Hotel), which costs 120 RMB per night.